2019 XC90 T6 Inscription - Engine Knocking
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    1. #1

      2019 XC90 T6 Inscription - Engine Knocking

      I've had the car six months. I have 15,000 miles on it. The first nine thousand plus miles, no knocking, the engine was as quiet as could be. I had the oil changed at the dealer and now the engine knocks (I'm using 91 or 93 octane gas as recommended). Anyone else have this experience?

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    3. #2
      Junior Member drmanny3's Avatar
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      Are you hearing engine detonation? Pinging associated with lower octane fuel? These engines have knock sensors on them to retard the timing if detonation is felt. I would not think an oil change would cause that sort of issue. Any messages being displayed? Normally when you have detonation it is associated with putting the engine in a stressful situation such as going uphill in a higher gear. Under what driving conditions do you hear the detonation? Our engines are normally pretty quiet so I wonder what it is you are hearing?
      2017 XC90 T8 Inscription Onyx Black, BW, Leather Dash, Convenience, Vision, Luxury, Air Suspension, Climate, 21" Wheels
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